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[209.132.180.67]) by mx.google.com with ESMTP id m5-v6si8700752pfb.104.2018.09.07.03.08.29; Fri, 07 Sep 2018 03:08:46 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=temperror (no key for signature) header.i=@nvidia.com header.s=n1._domainkey.nvidia.com header.b=mN6Mltm+; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728560AbeIGOVy (ORCPT + 99 others); Fri, 7 Sep 2018 10:21:54 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:17956 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728550AbeIGOVx (ORCPT ); Fri, 7 Sep 2018 10:21:53 -0400 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqemgate15.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Fri, 07 Sep 2018 02:41:34 -0700 Received: from HQMAIL101.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Fri, 07 Sep 2018 02:41:46 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Fri, 07 Sep 2018 02:41:46 -0700 Received: from [10.21.132.133] (10.124.1.5) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 7 Sep 2018 09:41:45 +0000 Subject: Re: [PATCH] [v3] drm/sun4i: fix build failure with CONFIG_DRM_SUN8I_MIXER=m To: Arnd Bergmann , Maxime Ripard , Chen-Yu Tsai CC: , , References: <20180711144403.1022829-1-arnd@arndb.de> From: Jon Hunter Message-ID: <105cb1cf-577a-043a-9b50-248a37090bdd@nvidia.com> Date: Fri, 7 Sep 2018 10:41:43 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20180711144403.1022829-1-arnd@arndb.de> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL108.nvidia.com (172.18.146.13) To HQMAIL101.nvidia.com (172.20.187.10) Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1._domainkey.nvidia.com; t=1536313294; bh=mtqasAr2SQmSas9izdXwtqGB9uTH8yE7tSpRk+qnP1E=; h=X-PGP-Universal:Subject:To:CC:References:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=mN6Mltm+xpc2aK+xMZc1dTE9gOq83c+UxVGqI8u6iTTxszoKTU1wa3jAcrWAkFFhe lBdb3fGE1/QmP9okEHXYfh4DlJvPLKWmuBlSqlVfF620fNPEt0ymCqKm3K47dHtImh G8lLvAcumirEd3C/3EbmbINT05XObVtpJsiSrDUoWU3XzJE1oRI/G7zTvK/cwJSaiC ddhSSrzg2ZKIji2h8NhskZgy8gL+b+5xG1RTUklhKqOUTVFH6TZHECOmH7LvLgzrgy GTxUyilVXaAe/3VRWGhw6W+FCx5VGRE2TW2nw512E6eS38MkZ96qIUnECJlfMndroL NhKN0JU3fk74w== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/07/18 15:43, Arnd Bergmann wrote: > Having DRM_SUN4I built-in but DRM_SUN8I_MIXER as a loadable module results in > a link error, as we try to access a symbol from the sun8i_tcon_top.ko module: > > ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun8i-drm-hdmi.ko] undefined! > ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun4i-drm.ko] undefined! > > This solves the problem by adding a silent symbol for the tcon_top module, > building it as a separate module in exactly the cases that we need it, > but in a way that it is reachable by the other modules. > > Fixes: 57e23de02f48 ("drm/sun4i: DW HDMI: Expand algorithm for possible crtcs") > Fixes: ef0cf6441fbb ("drm/sun4i: Add support for traversing graph with TCON TOP") > Signed-off-by: Arnd Bergmann I am seeing the following on today's -next (20180907) as well the last few -next versions for that matter ... ERROR: "sun8i_tcon_top_de_config" [drivers/gpu/drm/sun4i/sun4i-tcon.ko] undefined! ERROR: "sun8i_tcon_top_set_hdmi_src" [drivers/gpu/drm/sun4i/sun4i-tcon.ko] undefined! ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun4i-tcon.ko] undefined! Seems like this issue has cropped up again as Arnd's fix is present. I am seeing this on ARM64 builds. Cheers Jon -- nvpublic